.material-container {
  width: 100%;
  background: #242948;
  padding-top: 100px;

  .material-content {
    width: 1000px;
    padding: 30px 20px;
    background: #fff;
    border-radius: 4px;
    margin: 0 auto 20px;
    .banner {
      width: 960px;
      height: 390px;
      background: url(../../../../images/student/material_bg.png) no-repeat;
      margin-bottom: 30px;
      padding-top: 140px;
      h1 {
        font-size: 48px;
        color: #fff;
        text-align: center;
        margin-bottom: 35px;
      }
      >div {
        margin: 0 auto;
        width: 300px;
        height: 40px;
        display: flex;
        justify-content: space-around;
        align-items: center;
        color: #fff;
        font-size: 18px;
      }
    }
    .ppt-container {
      padding: 0 75px;
    }
  }
  .material-footer {
    position: relative!important;
  }
}